my phone is connected over Bluetooth with my car.
Unfortunately, my radio cannot read incoming messages (WhatsApp, threema, etc.) via Bluetooth. Now I would like to create a flow that reads the messages.
When phone is connected to my car Bluetooth, Google auto / Android assistant runs and when a message comes in there is a little pop up.
What do I have to set? Is it even possible? I already have a little experience, but that is too complicated for me

Thanks
Moto1987